Improvement in dental tools



s. BAIBCOCK a c. E. MASON.

- DENTAL TOOL. N0. 190,115. Patented Mayl 1877.

Witnesses; In venlors;

N. FETERs, PHOYO-LITHOGRAPHER. WASHINGTON. C

I soft metallic surfaces by means SANFORD BABOOGK AND CHARLES E. MASON,OF SPRINGFIELD, II LINOIS.

IMPROVEMENT IN DENTAL TOOLS.

Specification forming part of Letters Patent N 0. 190,115, dated May 1,1877; application filed November 29, 1876.

To all whom it may concern: 7

Be it known that we, SANFORD BABOOOK and CHARLES E. MAspN, of the cityof Springfield, county of Sangamon and State of Illinois, have inventedcertain new and useful Improvements in Operative and MechanicalDentistry; and we do declare that the following is a full, clear, andexact description thereof, reference being had to the accompanyingdrawings, making a part of these specifications, in which- Figure 1represents a face view of the wheels or disks. Fig. 2 represents acrosssection through the center of the same. Fig. 3 represents a sideView of the polishingpoints. Fig. 4 represents one of the metallicstrips or ribbons.

Our invention relates to certain new and useful improvements in dentaltools; and it consists of soft metallic disks or wheels, points, andstrips or ribbons, provided upon their face or working-surfaces withparticles of diamond-dust or powder, reduced to the desired state offineness, and applied to the of pressure, all as will be hereinaftermore fully described, and pointed out in the claim.

Referring to the drawings, A represents the wheel or disk, and B thepoints constructed of soft copper, or other suitable metal, and providedupon the faces or working-surfaces with particles offinely-pulverizeddiamond, which is rolled or pressed into the soft metal by pressureapplied between hard steel rollers, or by other suitable means, so thatthe said particles of diamond are securely embedded in the metal.

The wheels or disks A and the points B are attached to an ordinarydental lathe or engine, and rotated with great speed, for separating andpolishing natural teeth, and finishing fillings, and for grinding orpolishing the eeges of either natural or artificial teeth, and also forgrinding and fitting thejoints of sections of teeth in the same manneras has been done heretofore with steel cutters and wheel-disks andpoints of corundum or other composition.

The metallic strips or.ribbons G are constructed in the same manner ashereinbefore described, and are used by hand for the purpose ofpolishing approximate fillings, or for working between teeth.

By means of our improved construction we are enabled to furnish apolishing or grinding surface that possesses the advantages of makingthe requisite separations of natural teeth in a manner less painful tothe patient, and in a much shorter time than has been heretoforeaccomplished byother well-known means; and, further, they are moredurable and less liable to break, and can be made much thinner than anyother wheel or disk now in use, leaving the teeth and fillings highlypolished, doing away with the polishing-powders, 850.

Having thus described our invention, we claim as new and useful A dentalpolishing or grinding tool, formed of thin soft metal, in whichdiamond-dust is permanently embedded by pressure, all as described.

SANFORD BAB'OOOK.

CHAS. E. MASON.

Witnesses:

J. D. KEEDY, S. M. TAYLOR.

